Wire-spoke wheel



0. H. JOBSKI. WIRESPOKE WHEEL.

APPLICATION FILED JULY [9. I920.

' Patented Aug. 22, 1922 6 m m ww W; fw 0 v/ Q/J UNETEQ S'ifirTEES Parana" car es.

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wmn-sroxn WHEEL.

Application filed July 19,

it from other inventions.

The present improvements, relating as indicated to wire-spoke wheels, have regards more especially. to the provision of means for demountably securing a tire-supporting rim on such a wheel, in contra-distinction to the prevailing construction of wire wheels, which are bodily demountable, or detachable at the hub. Owing to the fact that the outer ends of the wire spokes require to be accessible in order to tighten up the spokes and make repairs, should one break, the means ordinarily used on wooden wheels for demountably securing the'tire-supporting rim in place, are not available. The object of the present invention, accordingly is to provide a simple and easily assembled structure, which will afford a secure mounting for the rim, at the same time that the other features referred to are retained. To the accomplishment of the foregoing and related ends, said invention, then, consists of the means hereinafter fully described and particularly pointed out in the claims.

=The annexed drawing and. the following description set forth in detail certain" mechanism embodying the invention, such disclosed means constituting, however, but one of various mechanical form's in which the principle of the invent-ion may be used.

In said annexed drawing Y Figure 1 is a transverse section of the outer of peripheral portion of a wire-spoke wheel equipped with a demountable rim, held in place by my improved device: Fig: ure 2 is a broken side elevational view of the same; Figure 3 is a similar broken side elevational view of a difi'erent portion of the wheel from that shown in Figure 2; Figures. 4 and 5 are side elevational views of two of the componentparts of the wheel structure separated from each other; Figure 6 is a transverse section corresponding with that of Figure 1, but showing a modification in the construction; and Figure 7 is a similar Specification of Letters Patent. patelltficl Aug 22, 1922 1920. Serial No. 397,492.

sectional view showing still another modification. 1

The-construction i of the wheel-body in general is of no interest in the present con-- nection. For this reason the hub is not illustrated at all,and such-hub may be either of the permanent type or demountable asdesired, although, as indicated above, the present improvements are of special advantage where the hub, together with the rest of the wheel, is not detachable. Similarly the num her and arrangement of the spokes '1 is a matter of' indifference, the outer ends of these only being shown in the drawing. Such outer ends are attached by means of nipples 2' of the usual construction to a metal fixed rim 3 in'the form of an annular; channel, the flanges 4 of which are directed radially outwardly, suitable depressions 5 being. formedin the bottomof the channel to-re; ceive the heads of such nipples, as shown in Figures land 6/ i j Gloselysurrounding I annular channel 6 having its flanges 7' di rected inwardly and spaced apart to flt'inside of the flanges 4 on the felly channel 3,- in the case of the first constructional-form illustrated in the drawing.

This outer channel member 6 is transversely split at one point 8, so that it may be thus sprung into place on the felly, or removed therefrom by separating the ends as shown in Figure -'3 so asto lift-its flanges over the outer flange of the folly channel. Channel 6 is'also providedwitha'n outwards ly directed, inclined flange 9 along" itsrear edge, so that, when in place on the fixed rim this felly is a second (Figures 1, 2 and channel, it presents a smooth cylindrical surface with such beveled flange along its one edge, just as does the felly-band' on the familiar type of wooden wheel when designed to be fitted with a demountable rim of the Continental type.

The rim 10 shown in several figures of-the I the beveled flange 9 ofthe' outerchannel, and

to be held in such seated position'by means,

.of suitable wedge members, inserted between its front edge and the correspondingedge-of channel 6. These wedge members preferably are of a form described in my copencing application filed March 27,18 Serial No. 15,212, consisting of clamp-plates 11 carried by nuts 12 mounted on the ends of bolts 13 that are transversely disposed in the fixed rim channel with their heads engaging the rear flange of such channel These bolts as a matter of fact, are held in complementary recesses 14 and 15 formed in the flanges of such fixed rim channel and the second channel (see Figures a and 5) and adapted to align when the latter is in proper position on the former. Said bolts thus not only serve to carry the nuts with the clamp plates, but also look such second channel against circumferential movement about the first.

Each plate 11 has its upper end inwardly directed to form a beveled projection 16, as clearly shown in Figures 1 and 6 and the adjacent portion of the rim is depressed so as to form a stamped-up beveled lug 17 projecting inwardly from the rim and inclined or beveled in a fashion complementary to the beveled projection of said clamping Jlate. Accordin l by drawin u the nut the edge of the beveled projection on the clamping plate will be forced between the smooth cylindrical face of the outer channel and such beveled projection on the rim, forcing the latter into seated position on the rear flange, and at the same time pressing radially outwardly against the rim so asto lock it securely in place.

,The modification illustrated inFigure 6 relates in the form of the outer channel member 20, which is here made wide enough to allow its flanges 21 to come outside, instead of inside, of the flanges l on the fixed rim channel 3. In this case, instead of having a beveled flange on each outer channel, upon which the rear edge of the rim may seat. the corresponding portion of the channel is bodilyraised to form a bevel 22 which, of course, functions in exactly the same way as such flange.

The modification illustrated in Figure 7 relates to the bolts 24, which, as here shown, need not extend entirely across the fixed rim channel 3, but may be merely short threaded studs riveted, or welded to the bottom of such channel, so as to project laterally there from. The outer channel, in this event, will have its front flange only provided with notches to engage such studs, the latter serving just as the bolts to prevent circumferential movement of such outer channel about the felly channel proper.

The manner in which my improved wheel is to be assembled should be sufficiently obvious from the foregoing description; at least the'manner in which the demountable rim may be removed or replaced will require no further explanation. Should it become necessary at any time to tighten or replace any of the spokes, this may be readily ac complished, upon demounting the rim, by simply removing the outer channel, in the fashion already made clear, whereupon the nipples of all the spokes are at once rendered accessible.

Other modes of applying the principle of my invention may be employed instead of the one explained, change being made as regards the mechanism herein disclosed,vprovided the means stated by any of the following claims or the equivalent of such stated means be employed.

1 therefore particularly point out and distinctly claim as my invention 1. In a wheel, the combination with a fixed rim in the form of-an annular channel havir outwardly directed flanges, and a tire-carry rim; of a second, transversely split, annular channel having inwardly directed flanges adapted to laterally engage with the flanges in said fixed rim channel, said second channel being provided with an inclined face along its one edge adapted to receive and support said rim; and clamp plates movably attached to said fixed rim channel and adapted to retain said rim in place on said second channel.

2. In a wheel, the combination with a fixed rim in the form of an annular channel having outwardly directed flanges, anda tirecarry rim; of a second, transversely split, annular channel having inwardly directed flanges adapted to laterally engage with the flanges in said fixed rim channel, said second channel being provided with an inclined face along its one edge adapted to receive and support said rim; transverse bolts locking said second channel against circumferential movement about said fixed rim c iannel; and clampplates niovably attached to said boltsand adapted to retain said rim in place on said second channel.

3. In a wheel, the combination with a fixed rim in the form of an annular channel having outwardly directed flanges, and a tire-carry rim; of a second, transversely split, annular channel having inwardly directed flanges adapted to lie inside and laterally engage with the flanges in said fixed rim channel, said second channel being also provided with an outwardly inclined flange along its'rear edge adapted to receive and support said rim; transverse bolts'locking said second channel against circumferential movement about said fixed rim channel; and clamping plates movably attached to said bolts and adapted toretain said rim in place on said second channel.

4. In a wheel, the combination with a fixed rim in the form of an annular channel having outwardly directed flanges, and a tirecarrying rim; of a second, transversely split, annular channel having inwardly directed flanges adapted to lie inside and laterally engage With the flanges in said fixed rim said second channel tolock the same against channel, said second channel being provided circumferential movement about said fixed with notches in its flanges, and having an rim; and clamp plates movably attached to 10 outwardly inclined flange along its rear edge said bolts and adapted to retain said rim in adapted to receive and sup-port said rim; place on said second channel. transverse bolts mounted in said fixed rim Signed by me this 25th da of J une, 1919. and adapted to engage in such notches in a OTTO J OBSKI. a 

